Top sides changed places (8)
I believe the answer is:
deposits
'places' is the definition.
(depositing is a kind of placing)
'top sides changed' is the wordplay.
'top sides' becomes 'topsides' ('topside' can be a synonym of 'top side').
'changed' is an anagram indicator.
'topsides' anagrammed gives 'DEPOSITS'.
(Other definitions for deposits that I've seen before include "Despots I find making bank lodgements" , "Matter laid down or money in the bank" , "Monies in a bank or minerals in the ground" , "Lodges in bank" , "Monies left in a bank" .)